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ARM: 7778/1: smp_twd: twd_update_frequency need be run on all online CPUs 

When the local timer freq changed, the twd_update_frequency function
should be run all the CPUs include itself, otherwise, the twd freq will
not get updated and the local timer will not run correcttly.

smp_call_function will run functions on all other CPUs, but not include
himself, this is not correct,use on_each_cpu instead to fix this issue.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: stable@vger.kernel.org
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Jason Liu <r64343@freescale.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Jason Liu 2013-07-01 09:53:30 +01:00 committed by Russell King
parent fd83247842
commit cbbe6f82b4
1 changed files with 1 additions and 1 deletions
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2
arch/arm/kernel/smp_twd.c
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@ -120,7 +120,7 @@ static int twd_rate_change(struct notifier_block *nb,
* changing cpu.
*/
if (flags == POST_RATE_CHANGE)
smp_call_function(twd_update_frequency,
on_each_cpu(twd_update_frequency,
(void *)&cnd->new_rate, 1);
return NOTIFY_OK;